Liquid Crystal Gamma Register Buffering for Interference Isolation
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Solution Overview
Problem
Conventional online gamma encoding technologies for liquid crystal panels face challenges in ensuring optimal gamma encoding for each panel, as the existing methods require direct port connection and are prone to interference, leading to incorrect gamma encoding modifications.
Innovation Solution
An online gamma adjustment system that includes a port for receiving gamma encoding from an external device, a storage device for storing the encoding based on a voltage level status, and a controller for selectively reading and writing the encoding to a gamma register, utilizing a switch and inverter to manage the voltage levels and prevent external interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a port is directly connected with the gamma register for online gamma adjustment, then the gamma encoding can be adjusted in real-time, but interference signals from the port may affect the gamma encoding stored in the register causing wrong modification
Solution Approach 1:
The patent introduces a buffer register as an intermediary component between the port and the gamma register. The buffer register temporarily stores gamma encoding data received from the port, isolating the gamma register from direct port connections and their associated interference signals. This mediator approach allows real-time adjustment capability while protecting the gamma register from noise and interference, thus maintaining encoding accuracy.
Solution Approach 2:
The patent divides the gamma register into two separate registers: a buffer register for receiving and temporarily storing adjustment data from the port, and a main gamma register for storing the actual gamma encoding. This segmentation separates the data reception function from the data storage function, allowing the system to maintain online adjustment capability while protecting the critical gamma encoding from port interference through spatial separation.
2Device complexity
If gamma encoding is burned in the gamma register using conventional methods, then the structure is simple, but the online gamma adjustment technology cannot be applied in a separated model
Solution Approach 1:
The patent segments the gamma register into a buffer register and a main gamma register, enabling the system to support both combined and separated model applications. The buffer register handles data reception and temporary storage, while the main gamma register stores the operational gamma encoding. This segmentation provides the structural flexibility needed for separated model applications while maintaining relatively simple overall system architecture.
Solution Approach 2:
The patent introduces dynamic switching capability between different operational modes (combined model and separated model) through control signals that manage data flow between the buffer register and main gamma register. This dynamic approach allows the system to adapt its operational configuration based on requirements, supporting both integrated and separated model applications without requiring fundamentally different hardware architectures.
Data Source
AI summary
An online gamma adjustment system of liquid crystal panel is disclosed. The system includes a port receiving a gamma encoding for adjusting from an external gamma adjustment device, and generating an enable signal; a storage device storing the gamma encoding for adjusting received by the port according to a voltage level status of the enable signal; a controller selectively reading the gamma encoding from the storage device according to voltage level status of the enable signal; and a gamma register receiving the gamma encoding read by the controller, outputting a gamma voltage corresponding to the gamma encoding read by the controller in order to drive a liquid crystal panel.